C07C 2521/14
Silica and magnesia
C07C2521/14 (Silica and magnesia) appears on 52 US grants and 26 published applications in this corpus.
Search patents in C07C- Granted patents
- 52
- Published applications
- 26
- Assignees
- 30
- Inventors
- 134
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 3 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 3 |
| 2013 | 3 | 3 |
| 2014 | 2 | 0 |
| 2015 | 2 | 2 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Catalysts for petrochemical catalysis24 Oct 2023US 11,795,123 B2Lummus Technology Inc.
- Methods for reacting chemical streams with catalysts comprising silica, alumina, and tungsten31 May 2022US 11,344,874 B2Saudi Arabian Oil Company
- Methods for reacting chemical streams with catalysts comprising silica, alumina, and tungsten15 Jun 2021US 11,033,892 B2Saudi Arabian Oil Company
- Catalysts for petrochemical catalysis19 May 2020US 10,654,769 B2Siluria Technologies, Inc.
- Steam-less process for converting butenes to 1,3-butadiene10 Sep 2019US 10,407,363 B2Saudi Arabian Oil Company
- Stable, high selectivity catalysts and catalyst systems, and processes for their use11 Aug 2022US 2022/0250046 A1SCG Chemicals Co., Ltd.
- Methods for reacting chemical streams with catalysts comprising silica, alumina, and tungsten26 Aug 2021US 2021/0260571 A1Saudi Arabian Oil Company
- Catalysts for single step double dehydrogenation of butadiene from n-butane24 Jun 2021US 2021/0188740 A1Sabic Global Technologies B.V.
- Catalysts for petrochemical catalysis3 Dec 2020US 2020/0377429 A1Siluria Technologies, Inc.
- Methods for reacting chemical streams with catalysts comprising silica, alumina, and tungsten30 Jul 2020US 2020/0238270 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Catalysts for petrochemical catalysis61US 8,921,256 B2Siluria Technologies, Inc. · 2014
- Autothermal process for the production of olefins59US 6,566,573 B1Dow Global Technologies LLC · 2003
- Catalyst for the methanation of carbon monoxide in sour gas52US 4,540,681 AUnited Catalysts Inc. · 1985
- Fluid bed process for para-xylene production51US 5,939,597 AMobil Oil Corporation · 1999
- Alkylation/transalkylation process with pretreatment of the alkylation/transalkylation feedstock50US 6,297,417 B1The Dow Chemical Company · 2001